Principal Full Stack Engineer

Fidelity InvestmentsMerrimack, NH

About The Position

The Team We at Fidelity Trade Management Engineering (TME) group are responsible for building and maintaining Fidelity’s brokerage platform order management and trade processing system. We are high functioning, fast paced technology group that work on cutting edge technologies to deliver low latency and high throughput trading solutions. We want to work with an engineer who is versatile, always eager to take on new problems and share solutions as we push the technology forward. Working independently as well as collaboratively, it is important for this person to have a positive approach to leadership, teamwork, and a drive to deliver groundbreaking solutions every day.

Requirements

  • At least a bachelor’s degree in Computer Science, Engineering, Information Technology or equivalent, with a preference for advanced study
  • Minimum 8 years of software design, development and performance testing experience
  • Deep hands-on experience in Software Performance Engineering
  • Demonstrated skill in Java, Spring, Python, Linux
  • Hands on experience using tools like jMeter to build performance harness for software benchmarking
  • Willingness to guide and mentor junior team members on solid engineering practices
  • Familiarity with event driven and service-oriented processing is required
  • Demonstrated work experience with cloud technologies.
  • An eye for detail and a skill for root cause analysis in diagnosing and mitigating production problems as quickly as possible in a dynamic, high value environment

Nice To Haves

  • Previous exposure to trading systems or brokerage technology
  • Knowledge of the FIX protocol is a plus
  • Industry certifications are welcome, but hands on experience and expertise are better.

Responsibilities

  • Work across organization and collaborate with teams to build highly scalable and resilient trading platform
  • Deliver high quality, timely, cost effective and maintainable software solutions in an agile environment to meet functional and non-functional business requirements
  • Actively contribute to the improvement of engineering practices such as code and design reviews, cloud strategy, and build and deployment pipelines
  • Work with squad lead and team tech lead on a frequent, recurring basis to design and implement novel solutions to complicated problems
  • Able to clearly present complex technical solutions, ideas, and plans to management, program teams, and less technical stakeholders as needed
  • Develop an understanding of the business domain you are working on and contribute to technology discussions with business partners and other external parties
  • Investigate creative practices and help decide how to apply them within the team.

Benefits

  • Fidelity will reasonably accommodate applicants with disabilities who need adjustments to participate in the application or interview process.
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service